LG_KP500_GSM Mobile Service Manual.pdf

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KP500 SVC ENG_1028
Internal Use Only
Service Manual
KP500
Date: October, 2008 / Issue 1.0
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REVISED HISTORY
Editor
Date
Issue
Contents of Changes
S/W Version
S.J.CHOI
4/10
0.1
* The information in this manual is subject to change without notice and should not be construed as a
commitment by LGE Inc. Furthermore, LGE Inc. reserves the right, without notice, to make changes to
equipment design as advances in engineering and manufacturing methods warrant.
* This manual provides the information necessary to install, program, operate and maintain the KP500.
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 3 -
LGE Internal Use Only
708542835.001.png
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 4 -
 
Table Of Contents
1. INTRODUCTION .....................................7
1.1 Purpose .......................................................... 7
1.2 Regulatory Information.................................... 7
1.3 ABBREVIATION.............................................. 9
5.10 SIM & uSD trouble .......................................87
5.11 Touch pad trouble ........................................91
5.12 RTC trouble..................................................93
5.13 Tri-axial, digital acceleration sensor trouble.94
5.14 Trouble shooting of Receiver part ................95
5.15 Trouble Shooting of Transmitter Part .........101
2. PERFORMANCE ...................................11
2.1 H/W Features .................................................11
2.2 Technical specification ...................................12
6. DOWNLOAD & S/W UPGRADE.............109
3. TECHNICAL BRIEF ..............................19
3.1 KP500 Functional Block diagram ...................19
3.2 Baseband Processor (BBP) Introduction .......20
3.3 Power management IC ..................................32
3.4 Power ON/OFF ..............................................37
3.5 SIM & uSD interface.......................................39
3.6 Memory ..........................................................41
3.7 LCD Display ...................................................42
3.8 Keypad Switching & Scanning .......................43
3.9 Keypad back-light illumination........................44
3.10 LCD back-light illumination...........................45
3.11 JTAG & ETM interface connector ................47
3.12 Audio ............................................................48
3.13 Charging circuit ............................................51
3.14 FM radio & BLUETOOTH.............................52
3.15 18pin Multi Media Interface connector .........55
3.16 Tri-axial, digital acceleration sensor..............57
3.17 General Description .....................................59
3.18 Receiver part................................................61
3.19 Transmitter part............................................62
3.20 RF synthesizer .............................................63
3.21 VCTCXO ......................................................63
3.22 Front End Module control.............................64
3.23 Power Amplifier Module ...............................65
3.24 PAM Schematic............................................66
7. CIRCUIT DIAGRAM ............................121
8. BGM PIN MAP.....................................129
9. PCB LAYOUT ......................................135
10. RF Calibration ..................................139
10.1 Test Equipment Setup................................139
10.2 Calibration Step..........................................139
11. Stand-alone Test ..............................144
11.1 Test Program Setting .................................144
11.2 Tx Test .......................................................146
11.3 Rx Test.......................................................147
12. EXPLODED VIEW & REPLACEMENT
PART LIST.........................................149
12.1 Exploded View ...........................................149
12.2 Replacement Parts.....................................151
12.3 Accessory.................................................. 169
4. PCB layout............................................67
4.1 Main PCB component placement...................67
5. Trouble shooting..................................69
5.1 Trouble shooting test setup............................69
5.2 Power on Trouble...........................................70
5.3 Charging trouble.............................................73
5.4 LCD display trouble........................................75
5.5 Camera Trouble .............................................77
5.6 Receiver & Speaker trouble ...........................79
5.7 Microphone trouble ........................................81
5.8 Vibrator trouble...............................................83
5.9 Keypad back light trouble...............................85
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 5 -
LGE Internal Use Only
 
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 6 -
 

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